Speaking in a press release, Valve has announced that their cooperative first-person shooter, Left 4 Dead 2, has sold over 2 million copies in just two weeks at retail.
Sales-to-date are more than double those of the first game; the company claims the numbers will put the Xbox 360 and PC title up as "one of" the biggest games on the formats for November.
"Released just two weeks ago, over 2 million retails copies of L4D2 have been sold worldwide and the game appears to be on target to become one of the top selling Xbox and PC titles for the month of November. Sales to date are more than double the original title, which was released exactly one year prior to L4D2. And 'Black Friday' promotions during the title's second week of availability in North American resulted in stronger than expected sales in L4D2's bid to become one of this year's best selling releases on both platforms."
More than 1 million Xbox LIVE Gold subscriptions have now played the zombie-infused shooter and details on the first downloadable content for Left 4 Dead 2 are forthcoming.
"Left 4 Dead 2 is off to a great start with strong support at retail and great reviews from the press," said Doug Lombardi, Director of Marketing at Valve. "Meanwhile the title has already been played by over 1 million Xbox LIVE Gold account holders, and news regarding L4D2 DLC 1 is coming very soon."